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153P/Ikeya-Zhang
Classification: Comet          SPK-ID: 1000374
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2452560.5 (2002-Oct-13.0) TDB
Reference: JPL 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.9900975228715980236415 8.3712e-07  
a 51.213581137145759214490 0.0043334 AU
q 0.5071413158741447935184 3.1668e-07 AU
i 28.119879162537930739063 2.8043e-05 deg
node 93.37026929285521 3.3966e-05 deg
peri 34.67316805083965 5.3526e-05 deg
M .5594094752361835 7.1047e-05 deg
tp 2452352.480780759064
(2002-Mar-18.98078076)		 2.0616e-05 JED
period 133867.8056804805
366.51		 16.991
0.04652		 d
yr
n .002689220146472397 3.4132e-07 deg/d
Q 101.9200209584174 0.008624 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.333062082583458E-9 1.588E-10
A2 [EST] -3.51380080054071E-10 3.892E-11
   Orbit Determination Parameters
   # obs. used (total)      1784  
   data-arc span      124788 days (341.65 yr)  
   first obs. used      1661-02-03  
   last obs. used      2002-10-02  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .84016  
   data source      ORB  
   producer      M.S.W. Keesey  
   solution date      2002-Oct-11 13:07:06  

Additional Information
 Earth MOID = .330976 AU 
 T_jup = 0.878 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.0 mag n/a ICQ 2004 Handbook  
comet total magnitude slope K1 15.0   n/a ICQ 2004 Handbook  

Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2002.2   153P/2002 C1       
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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